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The upper and lower fibers tend to rotate the scapula around the sternoclavicular articulation so that the acromion and inferior angles move up and the medial border moves down (upward rotation). The upper and lower fibers work in tandem with serratus anterior to upwardly rotate the scapulae, and work in opposition to the levator scapulae and ...
Like the original and modified Eden–Lange procedures, the levator scapulae is transferred to the scapular spine. In the T3 transfer, rather than transferring the rhomboids to the scapular fossae, they are transferred to the scapular spine, which better replicates the trapezius’ action of scapular upward rotation. [9]
Downward rotation would be prevented by co-contraction of other muscles that elevate the spine, the upper fibers of the trapezius, which is an upward rotator. When the shoulder is fixed, levator scapulae rotates to the same side and flexes the cervical spine laterally.
True abduction: supraspinatus (first 15 degrees), deltoid; Upward rotation: trapezius, serratus anterior Arm adduction [14] Arm adduction is the opposite motion of arm abduction. It can be broken down into two parts: downward rotation of the scapula and true adduction of the arm.
Benefits: A lumbar trunk rotation stretch is a great starting place, as it “helps loosen up the lower back and improve spinal mobility,” Prestipino explains. 2. Single knee-to-chest stretch
Costal aspect of medial margin of the scapula: Artery: Lateral thoracic artery, superior thoracic artery (upper part), thoracodorsal artery (lower part) Nerve: Long thoracic nerve (from roots of brachial plexus C5-C7) Actions: Protracts and stabilizes scapula, assists in upward rotation. Antagonist: Rhomboid major, rhomboid minor, trapezius ...
If you’re struggling with an achy back and could therefore benefit from some lower back stretches, you’re not alone: Lower back pain impacted an estimated 619 million people around the world ...
These muscles are responsible for several actions of the glenohumeral joint. The third group, which is mainly responsible for stabilization and rotation of the scapula, consists of the trapezius, serratus anterior, levator scapulae, and rhomboid muscles and attach to the medial, superior, and inferior borders of the scapula.